Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 63
Fig. 36. Harmonic motion is theprojection of circular motion. Fig. 37. Harmonic motion and cir-cular motion. moves from X to a. While P moves from A to B, p moves froma to h, and so on. While P makes one complete revolutionaround the circle, p makes one complete excursion forward andback across the…
Physics
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-162-91.webp)
